S/P + Blend for Jazz Bass?

[fretlessman71]

Stole this off of a zombie post.... is this what I think it is? It seems to be a wiring schematic for a Jazz Bass that provides Series/Parallel capability as well as a blend control.... I was hoping that one of these is a push-pull pot, too. (If this was your diagram, please say so, so I can give credit where credit is due.)

 

[line6man]

That's my diagram. It is for VBT with a push/pull series/parallel switch. It ONLY works with an M/N taper blend.

 

[fretlessman71]

That's my diagram. It is for VBT with a push/pull series/parallel switch. It ONLY works with an M/N taper blend.

Great! So what does the "M/N" stand for?

 

[line6man]

Great! So what does the "M/N" stand for?

I don't think it stands for anything. M and N are just the names given to the particular tapers of each gang of the pot. In contrast to M/N, there is A/C. Standard "single" pots can be A, B, or C.

 

[fretlessman71]

I don't think it stands for anything. M and N are just the names given to the particular tapers of each gang of the pot. In contrast to M/N, there is A/C.

See, THIS is why electronics and I don't get along... there's a "secret handshake/code name" for everything!.... :-D

 

[fretlessman71]

Like this? Noble - Blend Pot - 250K Blend - Best Bass Gear

And so I'm sure to get the right stuff, what are the OTHER two pots I need?

 

[line6man]

Like this? Noble - Blend Pot - 250K Blend - Best Bass Gear

And so I'm sure to get the right stuff, what are the OTHER two pots I need?

That should be the right part. It says M/N.

For the tone pot, you want an audio taper. (Generally called "A" taper.)
For the volume pot, you can use either audio, or linear. (Generally called "B" taper.) Preferences vary, and people like to debate over it, but I'm in the linear taper camp. Linear taper volume pots tend to be much smoother. On the other hand, audio taper is traditional, and probably easier to source.

 

[fretlessman71]

Like this for the volume? 250K Push/Pull Volume - Best Bass Gear

 

[line6man]

Like this for the volume? 250K Push/Pull Volume - Best Bass Gear

Yeah.

 

[fretlessman71]

And nothing special or strange for the tone? I could use what's already in the bass probably?